(x+y)^3(2x+2y)^3(3x+3y)^3=(x+y)^3[2(x+y)]^3[3(x+y)]^3=(x+y)^3*2^3(x+y)^3*3^3(x+y)^3=(2^3*3^3)(x+y)^(3+3+3)=8*27*(x+y)^9=216*(x+y)^910^α=20,10^β=5^-1=1/510^α÷10^β=20÷1/510^(α-β)=10010^(α-β)=1...